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Mark Cuban Won't Back Down

The Billionaire Entrepreneur on His Battles With the SEC, the Success of the Dallas Mavericks and the Lessons of 'Shark Tank'

By

Alexandra Wolfe

Dec. 27, 2013 8:19 p.m. ET

As the owner of the Dallas Mavericks, billionaire entrepreneur Mark Cuban relishes victory, so much so that he often stands during basketball games and screams. But it is an off-court win—against the U.S. Securities and Exchange Commission—that has him fired up now, and he isn't backing down any time soon.

Today, he is sitting back on a plush leather couch in a long-sleeved T-shirt, jeans and sneakers, with his feet up on the...